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Add 1/45 and 12/80

1/45 + 12/80 is 31/180.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 45 and 80 is 720

    Next, find the equivalent fraction of both fractional numbers with denominator 720
  2. For the 1st fraction, since 45 × 16 = 720,
    1/45 = 1 × 16/45 × 16 = 16/720
  3. Likewise, for the 2nd fraction, since 80 × 9 = 720,
    12/80 = 12 × 9/80 × 9 = 108/720
  4. Add the two like fractions:
    16/720 + 108/720 = 16 + 108/720 = 124/720
  5. 124/720 simplified gives 31/180
  6. So, 1/45 + 12/80 = 31/180

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